7247674-Bio-Mod-07

7247674-Bio-Mod-07 - Chapter 2 Module 7 Photosynthesis...

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Unformatted text preview: Chapter 2 Module 7 Photosynthesis Objective of Lesson: To explain the Process & Purpose of Photosynthesis Module 7 Photosynthesis Overview of Photosynthesis Converts solar energy to chemical energy Plants & photosynthetic organisms make about 160 billion metric tons of organic material per year Overview of Photosynthesis Plants - autotrophs (self-feeders) Organic matter from inorganic Inorganic : CO 2 , H 2 O & minerals Photosynthetic Autotrophs Photosynthetic Autotrophs Photosynthetic Autotrophs Cyanobacteria Bloom Plants Basics of Photosynthesis Accepts waste products of cellular respiration : CO 2 & H 2 O - Rearranges atoms (need light energy) to glucose & O 2 Chlorophyll absorbs sunlight (energy) Basics of Photosynthesis Chloroplast splits H 2 O to hydrogen & oxygen Hydrogen is transferred from H 2 O to CO 2 H is also moving along with electrons Electrons added to CO 2 Basics of Photosynthesis Chloroplasts transfer H with electrons to CO 2 to form sugar Oxygen is formed & escapes through stomata as waste product Chloroplasts Site for photosynthesis Present in green plants In mesophyll cells CO 2 enters, O 2 exits through stomata Water needed in photosynthesis Absorbed by roots & travels to leaves Chloroplasts Double membrane envelope Inner membrane filled with stroma Stroma: thick fluid Disk-like membranous sacs: thylakoids Found suspended in the stroma Stacks of thylakoids are called Granum Chloroplasts Granu m Chloroplasts Stomata Stomata Photosynthesis...
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This note was uploaded on 12/04/2009 for the course BIOL 230 taught by Professor Gibson during the Spring '09 term at Tennessee Martin.

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7247674-Bio-Mod-07 - Chapter 2 Module 7 Photosynthesis...

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